21745057

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 23836032

約数和(自身を除く): 2090975

約数列:

[1, 17, 43, 151, 197, 731, 2567, 3349, 6493, 8471, 29747, 110381, 144007, 505699, 1279121, 21745057]

約数ペア:

[(1, 21745057), (17, 1279121), (43, 505699), (151, 144007), (197, 110381), (731, 29747), (2567, 8471), (3349, 6493)]